body, html
  line-height: 1
  font-weight: 200
  font-family: 'PingFang SC', 'STHeitiSC-Light', 'Arial', 'Helvetica', 'sans-serif'
.clearfix
  display: inline-block
  &:after
    display: block
    content: '.'
    height: 0
    line-height: 0
    clear: both
    visibility: hidden
@media (-webkit-min-device-pixel-ratio: 1.5), (min-device-pixel-ratio: 1.5)
  .border-1px
    &:after
      -webkit-transform: scaleY(0.7)
      transform: scaleY(0.7)
@media (-webkit-min-device-pixel-ratio: 2), (min-device-pixel-ratio: 2)
  .border-1px
    &:after
      -webkit-transform: scaleY(0.5)
      transform: scaleY(0.5)
